Question about 2000 Yamaha YZF-R1

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Bike wont start tacho needle points to 3000 rpm

HOw do I test the sensor?

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  • Yamaha Master
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Tachs are coil sensing. Since you have a start problem, chk tach wiring at coil and coil wires.
If all is good, Locate or identify the tach wire and disconnect it. The tach wire should be on the negative side of the coil. If bike starts without tach wire hooked up, Your tack is more than likely the culprit. If bike stll won't run, chk for power to the coil and any possible fuse in ignition circuit. Under the seat I think. Good Luck

Posted on May 18, 2009

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Posted on Jan 02, 2017

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new subaru enigne. NO YEAR stated !!!!!!

the cold start RPM is wrong.
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the engine controls are out of control.
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which is it.?

that tacho meter is x1000
so 3 x 1000 is 3000 RPM.. all cars
and is 2 times the legal idle.
and 3 times hot. 800 is normal hot
0.8 on the dial zero point eight. = 800

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